Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
B153E 02
The liftgate control module detects a short to ground in the liftgate motor assembly position sensor circuit.
B153E 05
The liftgate control module detects a short to voltage or an open/high resistance in the liftgate motor assembly position sensor circuit.
B153E 08
The liftgate control module does not detect optical sensor pulses when the liftgate is in motion.